| /* |
| * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved. |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_SPIN_BUTTON_ELEMENT_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_SPIN_BUTTON_ELEMENT_H_ |
| |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/core/html/html_div_element.h" |
| #include "third_party/blink/renderer/core/page/popup_opening_observer.h" |
| #include "third_party/blink/renderer/platform/timer.h" |
| |
| namespace blink { |
| |
| class CORE_EXPORT SpinButtonElement final : public HTMLDivElement, |
| public PopupOpeningObserver { |
| public: |
| enum UpDownState { |
| kDown, |
| kUp, |
| }; |
| enum EventDispatch { |
| kEventDispatchAllowed, |
| kEventDispatchDisallowed, |
| }; |
| class SpinButtonOwner : public GarbageCollectedMixin { |
| public: |
| virtual ~SpinButtonOwner() = default; |
| virtual void FocusAndSelectSpinButtonOwner() = 0; |
| virtual bool ShouldSpinButtonRespondToMouseEvents() = 0; |
| virtual bool ShouldSpinButtonRespondToWheelEvents() = 0; |
| virtual void SpinButtonDidReleaseMouseCapture(EventDispatch) = 0; |
| virtual void SpinButtonStepDown() = 0; |
| virtual void SpinButtonStepUp() = 0; |
| }; |
| |
| // The owner of SpinButtonElement must call removeSpinButtonOwner |
| // because SpinButtonElement can be outlive SpinButtonOwner |
| // implementation, e.g. during event handling. |
| SpinButtonElement(Document&, SpinButtonOwner&); |
| |
| UpDownState GetUpDownState() const { return up_down_state_; } |
| void ReleaseCapture(EventDispatch = kEventDispatchAllowed); |
| void RemoveSpinButtonOwner() { spin_button_owner_ = nullptr; } |
| |
| void Step(int amount); |
| |
| bool WillRespondToMouseMoveEvents() override; |
| bool WillRespondToMouseClickEvents() override; |
| |
| void ForwardEvent(Event&); |
| |
| void Trace(Visitor*) const override; |
| |
| private: |
| void DetachLayoutTree(bool performing_reattach) override; |
| bool IsSpinButtonElement() const override { return true; } |
| bool IsDisabledFormControl() const override { |
| return OwnerShadowHost() && OwnerShadowHost()->IsDisabledFormControl(); |
| } |
| bool MatchesReadOnlyPseudoClass() const override; |
| bool MatchesReadWritePseudoClass() const override; |
| void DefaultEventHandler(Event&) override; |
| void WillOpenPopup() override; |
| void DoStepAction(int); |
| void StartRepeatingTimer(); |
| void StopRepeatingTimer(); |
| void RepeatingTimerFired(TimerBase*); |
| bool ShouldRespondToMouseEvents(); |
| bool IsMouseFocusable() const override { return false; } |
| |
| Member<SpinButtonOwner> spin_button_owner_; |
| bool capturing_; |
| UpDownState up_down_state_; |
| UpDownState press_starting_state_; |
| HeapTaskRunnerTimer<SpinButtonElement> repeating_timer_; |
| }; |
| |
| template <> |
| struct DowncastTraits<SpinButtonElement> { |
| static bool AllowFrom(const Node& node) { |
| auto* element = DynamicTo<Element>(node); |
| return element && element->IsSpinButtonElement(); |
| } |
| }; |
| |
| } // namespace blink |
| |
| #endif |